Quo Vadis? (1951) [Eunice]: Commits suicide by slitting her wrists, after Leo Genn does the same, in front of their dinner guests at his "farewell banquet."

An Angel for Satan (Un Angelo per Satana) (1966) [Illa]: Reportedly drowned when she tries to throw the cursed statue into a lake. (Thanks to Johan)

Moses the Lawgiver (Moses) (1975) [Eliseba]: Dies (off-screen) of either old age or exhaustion during the exodus across the desert; her death is not depicted or mentioned, but it was prophesied that neither Moses (Burt Lancaster) nor his generation would live to reach the promised land. (Thanks to Johan)